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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><html><head><!-- Copyright 1997 The Open Group, All Rights Reserved --><title>remainder</title></head><body bgcolor=white><center><font size=2>The Single UNIX ® Specification, Version 2<br>Copyright © 1997 The Open Group</font></center><hr size=2 noshade><h4><a name = "tag_000_008_075"> </a>NAME</h4><blockquote>remainder - remainder function</blockquote><h4><a name = "tag_000_008_076"> </a>SYNOPSIS</h4><blockquote><pre><code>#include <<a href="math.h.html">math.h</a>>double remainder(double <i>x</i>, double <i>y</i>);</code></pre></blockquote><h4><a name = "tag_000_008_077"> </a>DESCRIPTION</h4><blockquote>The<i>remainder()</i>function returns the floating point remainder<i>r</i> = <i>x</i> - <i>ny</i> when <i>y</i> is non-zero.The value <i>n</i> is the integral value nearestthe exact value <i>x</i>/<i>y</i>.When | <i>n</i> - <i>x</i>/<i>y</i> | = ½ ,the value <i>n</i> is chosen to be even.<p>The behaviour of<i>remainder()</i>is independent of the rounding mode.</blockquote><h4><a name = "tag_000_008_078"> </a>RETURN VALUE</h4><blockquote>The<i>remainder()</i>function returns the floating point remainder<i>r</i> = <i>x</i> - <i>ny</i> when <i>y</i> is non-zero.<p>When <i>y</i> is 0,<i>remainder()</i>returns (NaN or equivalent if available) and sets <i>errno</i> to [EDOM].<p>If the value of <i>x</i> is ±Inf,<i>remainder()</i>returns NaN and sets <i>errno</i> to [EDOM].<p>If<i>x</i>or<i>y</i>is NaN, then the function returns NaN and <i>errno</i> may be set to [EDOM].</blockquote><h4><a name = "tag_000_008_079"> </a>ERRORS</h4><blockquote>The<i>remainder()</i>function will fail if:<dl compact><dt>[EDOM]<dd>The <i>y</i> argument is 0 or the <i>x</i> argument is positive or negativeinfinity.</dl><p>The<i>remainder()</i>function may fail if:<dl compact><dt>[EDOM]<dd>The <i>x</i> or <i>y</i> argument is NaN.</dl></blockquote><h4><a name = "tag_000_008_080"> </a>EXAMPLES</h4><blockquote>None.</blockquote><h4><a name = "tag_000_008_081"> </a>APPLICATION USAGE</h4><blockquote>None.</blockquote><h4><a name = "tag_000_008_082"> </a>FUTURE DIRECTIONS</h4><blockquote>None.</blockquote><h4><a name = "tag_000_008_083"> </a>SEE ALSO</h4><blockquote><i><a href="abs.html">abs()</a></i>,<i><a href="math.h.html"><math.h></a></i>.</blockquote><hr size=2 noshade><center><font size=2>UNIX ® is a registered Trademark of The Open Group.<br>Copyright © 1997 The Open Group<br> [ <a href="../index.html">Main Index</a> | <a href="../xshix.html">XSH</a> | <a href="../xcuix.html">XCU</a> | <a href="../xbdix.html">XBD</a> | <a href="../cursesix.html">XCURSES</a> | <a href="../xnsix.html">XNS</a> ]</font></center><hr size=2 noshade></body></html>⌨️ 快捷键说明
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